Holder for belt fastening means



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HOLDER FOR BELT FASTENING MEANS Filed May 18, 1928 v SL05 1.- ne H 216fl) l 2e mn nffRnnnnn/nnnnnnnmnnnrnnnnnannahm w, www,

MHz/655. M 1 MM/@ @W-M Patented June 7, 1932 UNITED STATES PATENTfossiele GEORGE E. PURPLE, F LA GRANGE, ILLINOIS, ASSIGNOR T0 FLEXIBLESTEELVLACIN'G COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS iholders for belt fastening means.

In the art of applying belt fasteners and metallic lacings to the endsof belts, the general practice heretofore has been to employ a holderproper and a retaining pin, the latter functioning merely to temporarilykeep the fasteners or lacings or hooks associated with d the holderproper while'the clinching operation takes place, after which the pin iswithdrawn. All prior retaining pins, so far as I am aware, have been ofordinary cylindrical form and, while the holders proper have assumeddifferent forms, partly on account i of different styles of yfasteningmeans for which adapted, they have all possessed the common feature of awall or base section, against which the rounded apex or angle portionsof the fastening means bear when inserted in the holder proper, saidwall or base section being adjacent the retaining pin when the latter isin place. Y

Vith prior types of holders, much diiiiculty v, has been encountered inattempting to obtain proper application of the fastening means to thebelt ends. One cause is due to the fact that with retaining p-ins ofcylindrical form, the fastening means, whether of the continu- Y y ouslacing type or individual hook or staple type, shift in the holderscircumferentially around the retaining pin while being deformed.Consequently, the fastening means are not properly alined with respectto the end of the belt or for the reception of the hinge connecting pin.

Another cause is the failure to maintain uniformv bending or deformationof the fastening means in their apex or angle portions, the cylindricalretaining pin failing to act as a mandrel. This results in the appliedfastening means having variable size and con-v tour apex portions withwhich the hinge pin must co-act, and hence unequal wear and strain ofthe parts when in use.

One object of my invention is to provide a holder proper and retainingbar cooperable therewith so arranged that the belt fastening means areeffectively held against shifting or displacement while they are beingdeformed and clinched to the belt end. Y

FASTENING MEANS 192s. serial no. 278,676.

Another object of my invention is to proy vide a holder proper andcooperating retaining bar so constructed that the bar func tions as atrue mandrel during the clinching operation yand the important apexportions of the-fastening means which cooperate with the hinge pins,will be uniform as to size, shape and location when the clinching orattaching operation has been completed, to thus obtain an eflicient longlifejconnection betweeen the belt ends.

Another object of 4my invention is to provide a device of the characterindicated in the foregoing, such that one device may be employed4 withequal eciency for use with fastening means of dierent sizes and whenattached to beltsvof diier'ent sizes.

Other objects vof my invention are to provide a holding device of thecharacter hereinbefore indicated which may be utilized or adapted forany of the well known commercial metallic types of belt fastening meansand, further, to utilize-the retaining bar as the gauging element forthe belt end during the clinching operation.

I In the drawing forming a part of this specification, Fig. l is a topplan view of my improved holding device. Fig. 2 is a verticallongitudinal sectional view, taken centrally of the holding device.vertical sectional view corresponding to the lines 3h23 of Fig. 2, butofapproximately double the scale. Fig. A is a broken top plan View of aholder, showing a different form of retainer'and gauge bar embodying myinvention. Fig. 5 is a vertical sectional view, corresponding to theline 5-5 of Fig. 4. Figs. 6 and 7 are diagrammatical views, illustratingthe manner of applying-fasteners to belts which are thicker and thinner,respectively, than the gauge bar, these figures illustrating moreparticularly the function of the bar as Fig. 3 is a transverse'k amandrel. And Fig. 8 is a sectional view of retaining gauge ypin or barby the reference the staples.

pas:

aitayfas'indicatedfat 80, A Whichentersacorresponding` recess-31 at theVtopreventimproper character B. In actual practice, the holder proper AWill preferably be formed as a die casting, With thedetails ofconstruction thereof as hereinafter more specifically pointed out.

the slots being of a Width-correspondingto the thicknessy or gaugeof'tlie metal used' in Wall or surf-'ace 18, andi upwardly divergingside-Walls 19e-19. Thepartitions- 16') are casti so asto providerectangular'recessesiQO for, the' reception ofthe retaining bar B and"of such'sizefthatthe topf surface 21.ofl thefreeI taining barwi'lllieflushz Witlrt'heitops` of the partitions lf3;V

The' retaining bar Bis of: tangular generally' recopposed to and spacedfrom the llatbottom Wall ofj the recesses a distance corre spending tothe thickness'or gauge of the imet'- all' used in the fastening means.liny addition,

"j the retaining; bar B preferably hasfverticall and parallel sideWalls- 26-#265 the lovver conner edges ofi the barv being slightly!chamfer'ed or beveled as l indicatedl atl 27e-2T, and the upper corneredgesf are similarly cham- The bar B fisf removable With* resp ectftethe' holder proper A and may bed'etachably' assolciat'edf Wit-llx thelatterV in any snit-ableA man ner.V @ne 'means ofvacc'en1p1ishiingr;'thisl isy best shown in Fig. 2- Wlie'retflie/bar'Bhas-a rounded loop end=y 28A which.L Withinai recess 29' at the:co'rresp'onding='end of the"l holden proper-Az Alt its other'end,therhan Bis eut thus -l'e'aviing-l a fing-'er oppositefendfoftlieholderAe The holder Ai is shoWn= .detached in: the

. drawing but, as Willi be understood by; those skilledi in' the art,the' same may bexu's'ed'in any suitablemachinefor device for'clinchingt'liebelt fastening means proper. Preferably, also, the bar B isk nottruly squareA Vin cross section, as clear from- Figa V3', this beingdene insertion ofthe bar 'with- "i inthe 'recesses provided therefor inthe partitions.

In using my said improved' holdingy ldev-i ce, the samev is done withfastening means that are initially providedi'vvithafflat apex por'- tion82 and divergingside arms SSla'nd 23e-,the latter having intnrnedprongsewhich enter the belt and are'v clinchedf therein.v .Mlf 'hough haveillustrated' irrthel drawing f staples or hooks of commonffrmgthe in'vention may be usedl with fastening; means or The slots 17,'asshown1in.Fig, are of trapezoidal outline With a'bottom flat cross section,asindicait'ed inlig; "e the same-having a-flatbottom fa'ceforlsurfacevlacings of the continuous plate or strip type, it only being necessaryto modify the recess in the holder proper Which receives the same,

With my improvements, as the fastening means are deformed and clinchedto the belt. the endl of vWhich Will be' gaugedby the retainerbarBiassliown iniFigs,..6andZrwhere portions of belts are indicated at 36and 136, the diver-ging arms of the fastening means Will broughttogether intoapproximately# parallel' relation; Dnringthisclinchingoperation, .it is evident that the fastening means have their apexportions firmly secured Withinlthehelder proper` and there cannot-be anyshifting or displacement laterally or circumferentially Witlirespect totheretainingbar. The proper alinement andzpositioning-,of thefasteningdeviceszis'thereby positively main- Y tained duringf therclinchingi operation, thus assuring the proper location andV alinementof; thef fastening: meansWith respect' to the belt endat the conclusionof.y the clinching operation.. p

I another important featureresides in thel fact that the apex portionsoff-the fastening ine'ansl Will be' for-.medi to al definite, predeatermin'ed, fixed;V uniformf size landv contour by the retaining barlWhichi functions 'as a true: mandrel for' this purpose: Referring toFig. 6Where theend portion' 36 of a belt is indicated ofgreaterthickness than the Width ofi thelbar'B, it Will beV cbservedf that thehoolsorf staplesilflihave'their lower or apex2 portions conformedtontlie flat bottom facey andllovver'beveled. corners'of the bar 'Basthe grippers GQfforoe theprongs off the'fastenersi into the belt. ItWill furtherr be obserivedthat. theslocat'ion'of the apex. portions ofthe' fasten ers .is accurately' determinedby: the' gauge bar'B-againstwhichV the end oftherbelt is abutted during; the` applyingoperation, and,` furthemthati said apexportions are centeredV with.respect tothe end of the bel-t..

Refer-ning'to Fig. 7the endn port-ion 136= of a thinner belt isindicated', the holder proper and the' gauge and retaining: bar B'beingthesame. Int-thisiinstance, the fas teners' 214s are not onlyconformedl to' their proper shape-at their apex; portions by the bar Bfunctioning as a mandrel, but also'gthe portions of the'fastenersindicated at 62;-62 Will be necked-in: and 'conformed' about Ythebevele'd upper corner'e'dgesof-the bar B'When the grippersf 60 pressthe;Y prongs of? the' fasteners-into the belt.l Iirthis instance, also;lthe apex portions are centered orV alignedfwith: the belt endl andllocated at the proper distance therefrom by thev bar B, Which bothgauges the fastenersI and acts as a' 'mandrel therefor.. Y

Ini Figure S-y are' shown tfwo belt ends assembled andf attached by:lfasteners applied bythe use. of my'improvements, the rocker lpini-lliistrated in Figt beingiof thetypeshoW-n and claimedin myprior'Patent 1,5942691 of meV '7 the rounded side 42. It will benotedthat tween the. two belt ends will result in the two rocker pinsections rolling or rocking on each other and without slippage of thefasteners with respect to the rocker pin section located in the apexthereof. ,In the Fig. 8 illustration, the fasteners are shown applied tobelts of a. thickness corresponding to the width of the retainer barused therewith.

Referring now to the construction illustrated in Figs. 4 and 5, theholder proper is designated generally by the reference character C andthe combined retainer and gauge pin or bar by the reference character D.In these figures, a belt lacing E of the continuous strip type isindicated.

The holder proper C Will preferably be made as a die casting the same asin the case of the holder A, but, on account of being adapted formetallic belt lacing of the continuous strip type, there will be nopartitions but an elongated recess 7 0 having upwardly diverging sidewalls 71-71 and a bottom wall preferably slightly concaved, as indicatedat 72.

The retaining gauge pin D, in this construction, is slightly differentin cross section from the pin or bar B, the bar D being preferablyrolled down from round stock to a form having parallel side faces 7 3-73and slightly convexed upper face 74 and slightly convexed bottom face75. The upperl face 74 will lie iush with the top of the holder C, asshown in Figure 5, the bar D thus serving as a gauge for the end of thebelt during the application of the lacing E. The bar D is preferablyprovided with a loop hand hold 76 and is inserted endwise of the holderC in the usual manner. Due to its cross section, it is immaterial whichface 74 or 75 is up, since the bar D is symmetrical about its horizontalaxis.

Vith the holder C and bar D, it is evident that the lacing E isprevented from shifting or slippage, since it is held snugly between thelower face of the bar D and the bottom wall of the recess 70. Further,as the side arms of the lacing are pressed toward each other, the apexportions thereof will conform y to the bottom section of the bar D andwill be uniform as to size and location relative to the end of the beltwhich will b e gauged by the bar D, as before stated. It is evident thatthe form of the invention shown in Figs. 4 and 5 is adapted for beltsand lacings of different sizes, the same as in the case of the holder Aand bar B.

Although I have herein shown and described what I now consider thepreferred manner of carrying out my invention, the same is merelyillustrative and I contemplate all changes and modificationsthat comeWithin the scope of the claims appended hereto.

I claim: y 1. A holding device for belt hooks comprising a holder properhaving series of alternating recesses and partitions in one facethereof, said recesses having Hat bottoms and diverging sides and saidpartitions being provided with alined recesses to receive a retainingbar; and a retaining bar adapted to be positioned in said partitionrecesses, said retaining bar having a flat bottom surface and beveledcorners. Y 2. A holding device for belt fastener means comprising: aholder proper having a recessed portion along one face thereof, therecessed portion being formed with a Hat bottom and sides divergingupwardly therefrom; a retaining bar adapted to be disposed lengthwise insaid recessed portion, said retaining bar having also a flat bottom sideand adjacent chamfered corners; and means on said holder proper forretaining said bar in operative position.

In witness that I claim the foregoing I i have hereunto subscribed myname this 8th day of May, 1928.

GEORGE E. PURPLE.

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